Lwpck 3550: Implement and test fixed precision fp8 x bf8 (#2963)

* HasHotLoop is a constexpr

* Remove an unused function

* Remove some unused include statements

* Add implementation and tests for fp8 x bf8 weight preshuffle GEMM

* Add implementation and tests for fp8 x bf8 in CK Tile basic and universal GEMMs

* Remove two barrier calls that HotLoopScheduler already calls

* No need to suppress a variable that hasn't been declared

* Replace six arg_parser arguments with constexpr literals

* Simplify run_gemm_test_prec_type

* The strides don't need to be passed via arg_parser as we use their default values

* The layouts don't need to be passed as arguments twice

* Pass M N and K as regular arguments, not using the argument parser

* We can now remove the argument parser

* Add a common file for precision types to be used in testing

* Convert basic and universal GEMM tests to use gtest

* Make GemmConfig a test parameter, and form test cases as the cartesian product GemmConfigs x PrecTypes

* Add GemmConfigComputeV4 to the GEMM configs to run the universal tests on

* Added a changelog entry

* Add missing copyright statements

* ifndef-define-endif is not needed with pragma once

* Fix a comment

* Add F8 x BF8 tests for CompV4 in test_gemm_pipeline_kernel_types.hpp

* Disable the unreliable test MoeSortingCase4

---------

Co-authored-by: Adam Osewski <19374865+aosewski@users.noreply.github.com>

include/ck_tile/ops/elementwise/unary_element_wise_operation.hpp

@@ -454,11 +454,8 @@ struct PassThrough
     }
 
     template <typename E, typename C, typename... Ds>
-    CK_TILE_HOST_DEVICE auto operator()(E& e, const C& c, const Ds&... ds) const -> void
+    CK_TILE_HOST_DEVICE auto operator()(E& e, const C& c, const Ds&...) const -> void
     {
-        // Suppress unused parameter warning for ds
-        ((void)ds, ...);
-
         // Just assign e with c
         if constexpr(std::is_same_v<E, C>)
         {